We compared the clinical characteristics (including age, sex, location, clinical stage, progression state, lymph node metastasis, and distant metastasis) between the FN1-high expression and FN1-low expression groups, and observed statistically significant differences in lymph node metastasis, distant metastasis, and progression state, although no significant differences were identified for other clinical features (Table 3). Here, FN1 is linked to metastasis.